docs: def check_geophysical_vars_standard_name(self, ds):
          '''
          Check that geophysical variables contain standard names.
  
          :param netCDF4.Dataset ds: An open netCDF dataset
          '''
          results = []
          for geo_var in get_geophysical_variables(ds):
              results.append(
                  self._has_var_attr(ds, geo_var, 'standard_name', 'geophysical variables standard_name'),
              )
          return results